The main features of the central tube cable:

1 The peculiar spiral groove loose tube design is conducive to precise control of the excess length of the optical fiber cable, to ensure that the cable has excellent mechanical properties and temperature characteristics.

2 Loose tube material itself has good hydrolysis resistance and high strength tube filled with a special ointment Fibre critical protection.

3 Two parallel steel wires ensure tensile strength.

4 Small diameter, light weight, easy to be laid.